In view of joint source-channel coding, a joint coding theorem for ergodic discrete source and discrete memoryless channel is presented.

In applications of array processing such as radar, sonar, and wireless communications, the array observed signal is best modeled as a distributed, rather than a discrete source.

You'll need a system with the capability of processing sound input, preferably from an integrated microphone, although any sound source capable of producing discrete tonal events will suffice.